X-Recipient:	archive-cygwin AT delorie DOT com
X-Original-To:	cygwin AT cygwin DOT com
Delivered-To:	cygwin AT cygwin DOT com
DMARC-Filter:	OpenDMARC Filter v1.4.1 sourceware.org 9A5A23856269
Authentication-Results:	sourceware.org; dmarc=none (p=none dis=none)
	header.from=kba.biglobe.ne.jp
Authentication-Results:	sourceware.org;
	spf=pass smtp.mailfrom=kba.biglobe.ne.jp
From:	Jun T <takimoto-j AT kba DOT biglobe DOT ne DOT jp>
Mime-Version:	1.0 (Mac OS X Mail 12.4 \(3445.104.21\))
Subject:	Re: killpg(pgid, 0) fails if the process is in the middle of spawnve()
Date:	Thu, 19 May 2022 13:51:07 +0900
References:	<08B78336-7554-4ACA-80EF-F87C3C04C781 AT kba DOT biglobe DOT ne DOT jp>
	<YoUIi9n3xoUogD1z AT calimero DOT vinschen DOT de>
To:	"Lavrentiev, Anton (NIH/NLM/NCBI) [C] via Cygwin" <cygwin AT cygwin DOT com>
In-Reply-To:	<YoUIi9n3xoUogD1z@calimero.vinschen.de>
Message-Id:	<0C6FFD9B-F723-4F8C-BDA9-A67A64EB71E0@kba.biglobe.ne.jp>
X-Mailer:	Apple Mail (2.3445.104.21)
X-Biglobe-Sender:	takimoto-j AT kba DOT biglobe DOT ne DOT jp
X-Spam-Status:	No, score=-1.8 required=5.0 tests=BAYES_00, KAM_DMARC_STATUS,
	SPF_HELO_NONE, SPF_PASS, TXREP,
	T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6
X-Spam-Checker-Version:	SpamAssassin 3.4.6 (2021-04-09) on
	server2.sourceware.org
X-BeenThere:	cygwin AT cygwin DOT com
X-Mailman-Version:	2.1.29
List-Id:	General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Unsubscribe:	<https://cygwin.com/mailman/options/cygwin>,
	<mailto:cygwin-request AT cygwin DOT com?subject=unsubscribe>
List-Archive:	<https://cygwin.com/pipermail/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe:	<https://cygwin.com/mailman/listinfo/cygwin>,
	<mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
Errors-To:	cygwin-bounces+archive-cygwin=delorie DOT com AT cygwin DOT com
Sender:	"Cygwin" <cygwin-bounces+archive-cygwin=delorie DOT com AT cygwin DOT com>

> 2022/05/18 23:54, Corinna Vinschen <corinna-cygwin AT cygwin DOT com> wrote:
> 
> For a start, can you try the above patch? 

Thanks for a quick response. The patch seems to solve the problem.
Of course there is a possibility that it happens with very low probability,
but I haven't get the problem by running 'cmd | less' many times, say
fifty times or so.

I didn't notice any bad side effects, and I guess the probability is
very low if it ever happens (so not easy to detect it).
# I tried running 'ls | less' several times while running 
#   while true; do ps; done
# in another terminal, but didn't get duplicated processes.


PS:
I'm new to building cygwin1.dll by myself, and have a few questions:
(1) After make, I've manually copied new-cygwin1.dll to /bin/cygwin1.dll.
I didn't copy/install any other files. Is this OK?
(2) What are cygwin0.dll and cygwin1.dbg? The latter is a new cygwin1.dll
with debug info?
(3) Is there a simple way to build only new-cygwin1.dll (and anything
required by it), without building (or trying to build) unnecessary
things (especially documents)?

--
Jun

-- 
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple

- Raw text -